Job
In this role, you build extensive features with Next.js and Tailwind in the frontend, while using Supabase in the backend. You implement agent logic, write tests, and integrate external APIs.
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Job technologies
Your role in the team
- You build features end-to-end: Next.js (React, App Router) and Tailwind v4 in the frontend, Server Actions, Route Handler, and Supabase (Postgres, Auth, Realtime) in the backend.
- You are working on the Agent Runner: system prompts, tools, model selection, and sandbox execution.
- You write tests for policy, security, and prompt logic.
- You integrate external APIs and keep them stable.
- You are responsible for data modeling, migrations, and tenant separation (Row Level Security) in Supabase.
- You are building tracking and analytics logic.
Our expectations of you
Qualifications
- You are familiar with relational databases, ideally Postgres/Supabase, and have experience working with Auth, permissions, or multi-tenant structures.
- You have already worked with LLM APIs (e.g., Anthropic, OpenAI).
- You think security with: validating inputs, managing secrets properly, treating external data as data, not as instructions.
- You have a good sense for UI/UX.
- You prefer working in the office rather than from home.
- You speak German at least at C1 level.
Experience
- You have solid knowledge of TypeScript and practical experience with Next.js or a comparable React framework.
Topics you will work on
Job locations
About your employer
BV Bestseller Verlag GmbH, based in Bochum, offers comprehensive publishing services as well as seminars and lectures. The company is recognized as a leader in open sales seminars in Europe.
- Established Company
- Onsite
- Media, Publishing
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